Question

2 integral problem please help... attached is file

Answer 1

No file

Answer 2

the file is there now

Answer 3

please explain how u got ur answers please

Answer 4

Damn, your professor gives fun questions.

It's B for the first one, because imagine the integral with xsin(x) in place of t, then deriving it. A la the chain rule, we'll get the derivative of xsin(x), and then the function in the integral.

Answer 5

For the second one, just evaluate the integral from 0,1, and then from 1,5

Answer 6

so is the answer 85/2

Answer 7

I... don't know? I'm too lazy to actually calculate stuff.

Answer 8

WolframAlpha is your friend.